Simonetta, A.M.; Delle Cave, L. (1975). The Cambrian non-trilobite arthropods from the Burgess Shale of British Columbia. A study of their comparative morphology, taxonomy and evolutionary significance. Palaeontographica Italiana. 69: 1–37.
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Simonetta, A.M.; Delle Cave, L.
1975
The Cambrian non-trilobite arthropods from the Burgess Shale of British Columbia. A study of their comparative morphology, taxonomy and evolutionary significance.